169285913 has 2 divisors, whose sum is σ = 169285914. Its totient is φ = 169285912.

The previous prime is 169285901. The next prime is 169285943. The reversal of 169285913 is 319582961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165071104 + 4214809 = 12848^2 + 2053^2 .

It is an emirp because it is prime and its reverse (319582961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169285913 - 2²⁰ = 168237337 is a prime.

It is not a weakly prime, because it can be changed into another prime (169285943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84642956 + 84642957.

It is an arithmetic number, because the mean of its divisors is an integer number (84642957).

Almost surely, 2^169285913 is an apocalyptic number.

It is an amenable number.

169285913 is a deficient number, since it is larger than the sum of its proper divisors (1).

169285913 is an equidigital number, since it uses as much as digits as its factorization.

169285913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 169285913 is about 13010.9920067611. The cubic root of 169285913 is about 553.1890904403.

The spelling of 169285913 in words is "one hundred sixty-nine million, two hundred eighty-five thousand, nine hundred thirteen".